Theoretical study on gas flow and heat and mass transfer in a converter

Yoshiei Kato, Jean Claude Grosjean, Jean Pierre Reboul, Paul Riboud

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A theoretical study was compared with a hot model experiment in order to understand gas flow and heat and mass transfer in a converter with a top blowing lance. The experiment was made in a 200 kg high frequency induction furnace equipped with an oxygen lance. Post combustion ratio, γ, measured by a mass spectrometer, increases with increase in lance height and decrease in oxygen flow rate. Transfer efficiency of reaction heat of CO and CO2 formation to the metal bath decreases with increasing γ. Two-dimensional equations of continuity, conservation for momentum, enthalpy and gas species were solved numerically under the condition that the reaction rate at a fire spot is controlled by diffusion in a gas phase. The ad hoc model was used for the calculation of effective viscosity. The maximum temperature and CO2 concentration are in the recirculating flow zone located between the lance tip and the depressed surface.

Original languageEnglish
Pages (from-to)478-485
Number of pages8
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume75
Issue number3
DOIs
Publication statusPublished - Jan 1 1989
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Theoretical study on gas flow and heat and mass transfer in a converter'. Together they form a unique fingerprint.

  • Cite this